Prevention and treatment of common diseases of Pleurotus ostreatus
In cloudy days, lack of light and high relative humidity in the mushroom shed, Pleurotus ostreatus is extremely prone to two complications: soft rot and bacterial spot disease.
So how can we prevent and cure this complication? according to our practical experience, we specially introduce the following comprehensive prevention and control methods to mushroom farmers.
1. Breeding disease-resistant varieties and cultivating strong hyphae to improve the disease resistance of Pleurotus ostreatus. Such as: Hebei without spores, Jiangsu wild wind, etc., the mycelium growth is snow-white, the fruiting body has strong disease resistance and high yield.
2. Increase ventilation and purify the air environment.
3. The sewer water replenishment method was used to maintain the relative humidity of the mushroom shed at 65%.
4. Disinfect the mushroom shed. Baiyou powder sprinkled on the shed wall and shed ground, both economical, disinfection and sterilization effect is good, might as well have a try.
5. Drug treatment formula: (1) agricultural streptomycin 2.5 million units 50% carbendazim, 10 grams of green wind 9550 milliliters, water 14 kilograms. (2) 2.5 million units of agricultural streptomycin, 9550 ml of green wind, 17 grams of green Fenwei 1 and 14 kg of water.
Streptomycin is a broad-spectrum fungicide, which can kill a variety of bacteria, and chlorpromazine has a good inhibitory and killing effect on fungi. The two drugs can be used together to improve the efficacy of inhibition and killing miscellaneous bacteria. Lvfeng 95 regulates metabolism and promotes growth. Lufenwei No. 1 is a nutritional supplement, which can not only enhance the resistance of Pleurotus ostreatus, but also kill parasitic bacteria and fungi.
Methods: if you choose one of the above formula to prepare mixed solution, fruiting body and bacterial surface spray, once a day, it is appropriate for fruiting body not to drop the liquid. It usually works twice and recovers three times. During spraying, it is forbidden to spray water on the fruit body.
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Common Physiological Diseases of Pleurotus ostreatus and Their Control
1. Hyphae grow excessively. In the production of Pleurotus ostreatus, hyphae often grow excessively, which results in dense hyphae forming clumps, forming old fungus skin without mushroom production. The main reason is aging of strains or transformation with aerial hyphae during tube transfer of first-class strains. If the mushroom room ventilation is bad, temperature is too high, film cover time is too long will also cause hypha excessive growth and no mushroom. Control method: strengthen seed production management, increase ventilation and reduce temperature of mushroom house in differentiation stage of fruiting body. When the old fungus skin appears in cultivation, remove the old fungus skin in time, cut the fungus block and fungus film to promote mushroom.
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What if Pleurotus ostreatus grows green mold?
Recently, Li Zhibao, a grower of Pleurotus ostreatus in Zhumiao Village, Nancheng Town, Xiajin County, Shandong Province, called to consult: the market of Pleurotus ostreatus is good this year, with a wholesale price of 1.50 yuan / jin. He suddenly invested 20000 jin of materials to cultivate Pleurotus ostreatus, but now there are some green things growing on Pleurotus ostreatus cultivation bags. Experienced people say it's green mold. I don't know what to do. The author's reply is as follows: green mold is the main disease in the cultivation of edible fungi, which mainly occurs on the fungus mass without bacteria or the culture material without thorough disinfection. It is easy to breed green mold in the environment with high acidity and humidity. Its spores spread in the air.
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